Is the continued use of polio-causing oral vaccine justified?
During 2018-2024, there were 3,955 cases of cVDPV polio globally, averaging 565 cases per year. As on September 17, 2025, 143 cVDPV cases have been reported this year. In 2023, five polio cases in east Afghanistan were in children who had received 16 to 28 OPV doses.
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